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发明名称
An improvement in connection with the buckets of bucket dredgers
摘要
申请公布号
GB428327(A)
申请公布日期
1935.05.10
申请号
GB19340008946
申请日期
1934.03.22
申请人
WALTER ERNEST HUGHES
发明人
分类号
E02F3/14
主分类号
E02F3/14
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